Flamsteed Astronomy Society

The Flamsteed is an amateur astronomy society, based at the Royal Observatory Greenwich


The Society is part of the membership organisation of Royal Museums Greenwich.

We are an affiliated society of the British Astronomical Association and members of The Federation of Astronomical Societies.



Upcoming Events

  • Astrophotography – A Beginner’s Guide
    08 Dec, 19:00 – 21:00
    Mycenae House, 90 Mycenae Rd, London SE3 7SE, UK
    This workshop is intended as a basic introduction to astrophotography, using DSLRs or compact system cameras. We will introduce the sort of equipment that you might need for basic astrophotography, camera settings for taking the best astro images and the types of image that you can take.
  • Blackheath Observing Event
    Multiple Dates
    Fri, 16 Dec
    North of Talbot Place
    16 Dec, 19:30 – 23:00
    North of Talbot Place, Talbot Pl, Blackheath, London SE3, UK
    We are intending to run a Blackheath observing session. As with all observing activities we are dependent on weather conditions, a Go/No Go message will be sent around 6pm on the day of the event. Backup will be Saturday 17th December. No booking is needed and all are welcome
  • Romney Observing Event
    Multiple Dates
    Wed, 21 Dec
    Romney Marsh
    21 Dec, 20:30 – 23:00
    Romney Marsh, Romney Marsh, UK
    Martin and Jane have very kindly offered to run a viewing session from their observatory on Wednesday 21st December or Friday 23rd December (weather permitting).
  • Viewing with the Great Equatorial Telescope
    Multiple Dates
    Tue, 17 Jan
    Royal Observatory Greenwich
    17 Jan 2023, 19:00 – 21:00
    Royal Observatory Greenwich, Blackheath Ave, London SE10 8XJ, UK
    Flamsteed viewing session with the Great Equatorial Telescope at the Royal Observatory Greenwich.
  • William Lassell 1799 - 1880, Telescopes, Planets and Drinking Beer
    23 Feb 2023, 19:00 – 21:00
    Location is TBD
    Lassell made his fortune as a Liverpool brewer. This enabled him to pursue his passion for astronomy, particularly his keen interest in the outer planets. Described as one of the first “Grand Amateurs” of the Victorian age, William Lassell list of achievements is truly impressive.
  • What has the space program ever done for us
    21 Mar 2023, 19:00 – 22 Mar 2023, 21:00
    Location is TBD
    A lot is spent on space exploration and some people believe that it is a waste of money. However, there are so many everyday things that we take for granted that wouldn’t exist if it hadn't been for the Space Programme. This talk takes a deep dive into this subject.
  • Astronomy in the medieval world
    Tue, 25 Apr
    Location is TBD
    25 Apr 2023, 19:00 – 21:00
    Location is TBD
    It is sometimes supposed that there was no astronomical activity in the Middle Ages, but during this time much of the foundations of modern astronomy were laid. An overview of astronomers and astronomical knowledge from the 5th Century to the publication of Copernicus'
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About Flamsteed Astronomy Society

The Society was founded in 1999, and is part of the membership organisation of Royal Museums Greenwich.

The Flamsteed has around 400 members who represent the full range of interests and experience in astronomy. Many are beginners. We are named after the first Astronomer Royal, John Flamsteed.

Our lecture meetings are held once a month between September/October and May/June, usually on a Monday evening, in the lecture theatre of the National Maritime Museum, or in the Peter Harrison Planetarium at the Royal Observatory Greenwich (ROG). The Society regularly holds observing evenings using members’ own telescopes.  In addition the Society stages viewing sessions with the ROG’s Great Equatorial Telescope, the largest of its kind in the UK, and seventh largest in the world.